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Re: loading a filename beginning with a digit
From: |
avraham.rosenberg |
Subject: |
Re: loading a filename beginning with a digit |
Date: |
Mon, 21 Jul 2003 00:14:14 -0500 |
Hi,
In my experience, if you wish to load data from a text file to some
arbitrarily named array, in a script, load is not the most convenient
tool. I use, instead the c-type input functions.
example: fid1=fopen("file_name","r");
array_name==fscanf(fid1,"%f %f\r",[2,inf]); %assuming you
have two colums of data
fclose(fid1); %this is not indispensable. Just good old
habits.
Cheers, Avraham
On Sun, 20 Jul 2003, Mike Miller wrote:
> Suppose, for example, that I have a file named 2x.txt with these contents:
>
> 1 3
> 9 5
>
> (Just two lines with two integers per line, but in real life I'll want to
> do this with larger files!) When I load the file, I am not able to access
> the data. (Please don't tell me to rename the file! I just want to make
> the load function work within a script I'm writing no matter what the
> filename, if that's possible.) I did this in a couple of versions of
> Octave on Solaris 8:
>
>
> octave:1> load 2x.txt
> octave:2> whos
>
> *** local user variables:
>
> prot type rows cols name
> ==== ==== ==== ==== ====
> wd matrix 2 2 2x
>
> octave:3> 2x
> parse error:
>
> >>> 2x
> ^
>
> octave:3> "2x"
> ans = 2x
> octave:4> eval("2x")
> parse error:
>
> >>> 2x
> ^
>
> error: evaluating index expression near line 4, column 1
>
>
> So, Octave seems to load the 2x2 matrix, but I just can't figure out how
> to get at it. (I thought Octave didn't allow variables beginning with a
> digit.) I'd really like to be able to rename the loaded matrix, but how?
>
> Thanks in advance for any tips!
>
> Mike
>
> --
> Michael B. Miller, Ph.D.
> Assistant Professor
> Division of Epidemiology
> and Institute of Human Genetics
> University of Minnesota
> http://taxa.epi.umn.edu/~mbmiller/
>
>
>
> -------------------------------------------------------------
> Octave is freely available under the terms of the GNU GPL.
>
> Octave's home on the web: http://www.octave.org
> How to fund new projects: http://www.octave.org/funding.html
> Subscription information: http://www.octave.org/archive.html
> -------------------------------------------------------------
>
>
>
-------------------------------------------------------------
Octave is freely available under the terms of the GNU GPL.
Octave's home on the web: http://www.octave.org
How to fund new projects: http://www.octave.org/funding.html
Subscription information: http://www.octave.org/archive.html
-------------------------------------------------------------